To be fair, you can replace vdevs with same-sized or larger vdevs online. The issue is that you cannot replace with smaller vdevs nor can you eliminate vdevs. In other words, I can migrate data around without downtime, I just can't shrink or eliminate vdevs without send/recv. This is where the philosophical disconnect lies. Everytime we descend into this rathole, we stir up more confusion :-(
We did just this to move off RAID-5 LUNs that were the vdevs for a pool, to RAID-10 LUNs. Worked very well, and as Richard said was done all on-line. Doesn't really address the shrinking issue though. :-) Best Regards, Jason _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss